Figure 1
From: Three-dimensional platinum nanoparticle-based bridges for ammonia gas sensing
Gas-phase electrodeposition procedure schematics, bridge growth process, and nanobridge gas sensor test setup details. (a) Programmable gas-phase electrodeposition being carried out in a PMMA based reactor with a cylindrical cross-section. A spark discharge between platinum electrodes produces charged nanoparticles which are collected on a patterned substrate. During a particular time instant, platinum nanoparticles (green) are synthesized and collected on the biased domain pair until a bridge forms; all other domain pairs have a floating potential. This process is repeated 6 times to produce an array of Pt nanoparticle-based bridges on a single chip. (b) SEM images of a single bridge formation.
